Miner&#39;s lamp.



RALPH L. GRAVES, OF SUMPTER, OREGON.

MINERS LAMP.

Specification of Letters Patent.

Patented May 7, 1907.

Application filed August 3,1906. Serial N0- 329,069.

To all whom it may concern.-

Be it known that I, RALPH L. GRAVES, a citizen of the United States, anda resident of Sumpter, in the county of Baker and State of Oregon, haveinvented a new and Improved Miners Lamp, of which the following is aspecification.

My invention relates-to lamps of the character stated, and has for itsobject a new and improved lamp adapted for burning parafiinwax or othersolid fuel.

The invention consists of the special construction, arrangement andcombination of parts shown by the accompanying drawing, and hereinafterfully described.

In the drawing, Figure 1 is a central vertical sectional view through myimproved lamp. Fig. 2 is a detail view of the conduct ive wick tube.Fig. 3 is a transverse sectional view of the wick tube, and Fig. 4 is aview of another form of similar wick tube.

In the practice of my invention, I employ any suitable form of minerslamp-body A, having an attaching hook B, a spout B, and if desired, asuspending loop C on the de tachable cap D of the lamp-body.

E denotes my improved heat conductive wick-tube, and F, the usual formof wick employed in lamps of this character. The wick tube E isconstructed of a series of copper wires G, arranged into tubular formand secured by collars H, H, the collars being crimpedly or otherwisesuitably secured to the wires, at the ends of the tubular arrangementthereof, preferably as shown by Figs. 2 and 3. A series of the wires Gare projected beyond the collar H, forming extensions I. The wireextensions I are designed for arrangement in openings through thebodycap J, the openings being located ranging around the wick-collar K,and it is further designed that the ends of the wire extensions .beprojected, adapted to be kept heated by the wick-flame. N ow it isapparent that heat thus set up in the wire extensions I will beconducted to the tubular wick-tube E, heating all the wires G thereof,through conductivity of the end collars H, H.

It is designed to secure the extensions I of the heat conducting wiresby means of a suitable tubular ring L, asbestos or other noncombustiblepacking M being arranged next to the conductive wire extensions,substantially as shown by Fig. 1. While I prefer to secure the wireextensions I to the wickcollar K, as shown and described, other obviousmeans may be employed for the purpose without departing from the spiritof my invention. Obviously the user of my lamp can bend the wiredextensions I outwardly, indicated by dotted adjustment in Fig. 1, andthereby cause the lamp flame to spread more or less, according to theadjusted position of said extensions 1. r

In Fig. 4 of my drawing, I show another form of the wick tube, the samebeing constructed of a conductive tubular body E, made permeable by aseries of perforations E and one end of the tubular body fashioned intointegral finger-extensions E the latter being designed for arrangementprojecting through the cap J, into position adapted to be heated by thewick flame similar to the described heating of the wire extensions I.The main object of my invention being means to melt solid oils used inthe lampbody, such as paraffin wax, and the like, and insure that thesame be kept in fluid condition for absorption by the wick and conveyingthereof to its lighted end.

WVith my improved heat-conducting wick tube, the fuel is retained intofluid condition no matter into which direction the flame is blown, sincein any deflection of the flame, one or more of conducting extensions Ior E would receive heat, and the same be conducted into the lamp-body tothe tubular portion of the wick-tube, keeping the latter suitably heatedfor retaining the fuel into melted fluid condition.

I claim:

1. A wick tube constructed of a series of wires, collars adapted forholding the wires in circular arrangement, and a series of extensionwires.

2. The combination with a lamp-body, of a wick tube constructed of aseries of wires held in tubular arrangement by suitably attachedcollars, and a series of finger extensions at one end of the wick tube.

3. In combination withalamp-body, with around the wick supporting meanson the means fzr supporting a wick, of a permeable lamp-body.

Wick tu e adapted for arrangement in the w lamp body, and a series offinger extensions I RALPH A 5 at one end of said wick tube, saidextensions l \Vitnesses:

FRANK S. BAILLIE,

being adapted to project to the outer side of WM. H. PAoKWooD, Sr.

the lamp-body with circular arrangement

